Walter Electronics, as a leading global enterprise in the field of circuit protection components, has been dedicated to the research and production of fuses and alloy resistors since its establishment in 1968. Its fuse product line covers multiple fields such as industry, automotive, consumer electronics, communication, and new energy. With technological innovation and scenario based design, it has formed six core product categories, each with unique technological advantages and market positioning.
1、 SMD Fuse
Technical features:
Model coverage: including Chip SMD Fuse and Nano Fuse, with package sizes covering 0402, 0603, 1206, 6125, 1032, 1245, etc., with a current range of 0.5A to 40A.
Fast break/slow break/surge resistant design:
Fast break type (F series): response time<5ms, suitable for circuits sensitive to transient overload (such as mobile phone charging, LED driving), to prevent capacitor or IC damage due to short circuit.
Slow break type (T series): Response time>10ms, able to withstand transient impacts from motor start-up or capacitive loads (such as fans and water pumps), avoiding false melting.
Surge resistant type (SF/SH series): By optimizing the melt material and structural design, the starting current is suppressed (such as the motor starting current can reach 5 times the rated current), and it is suitable for scenarios such as frequency converters and industrial motors.
Voltage and current matching: rated voltage ≥ 1.5 times the working voltage of the circuit (e.g. 63VDC fuse is selected for 24V system) to ensure safety.
Application scenarios:
Mobile power bank/battery protection: 0603F series (0.5-2A) is suitable for compact spaces and has fast break characteristics to protect the battery.
Industrial motor starting: 6125SF series (10-20A) suppresses starting current surge and adapts to industrial power grids with high voltage.
New energy vehicle BMS: 1206HC series (20-30A) can withstand high current shocks and is compatible with power battery management systems.
2、 Plug in type fuse
Technical features:
Diverse types: including miniature fuses, ultra small fuses, ceramic tube fuses, and glass tube fuses.
Ceramic tube fuse: using high temperature and arc resistant engineering plastic inner cap shell, effectively extinguishing the arc, improving the breaking capacity, and improving the copper cap perforation phenomenon.
Glass tube fuse: With uniform wall thickness and strong anti-interference ability, it ensures stability in harsh environments.
Application scenarios:
Electric rice cooker/motor: TG series (15A/250VAC) covers a wide temperature range of 66 ℃ -240 ℃, suitable for extreme high temperature environments.
Transformer/Exhaust Fan: The TU series supports dual voltages of 250VAC/50VDC and a fixed operating temperature of 115 ℃, ensuring precise protection for complex circuits.
3、 Thermal Cutoff Fuse
Technical features:
Series matrix: TE, TG, TB, TU four series, supporting different currents, voltages, operating temperatures, and sizes.
Wide temperature range response: TE/TG series covers 66 ℃ -240 ℃, suitable for extreme high temperatures; TB series (102 ℃ -150 ℃) focuses on medium temperature sensitive equipment; The TU series meets the requirements of precision instruments with a fixed temperature point of 115 ℃.
Safety certification: Export equipment must comply with UL, VDE and other certifications to ensure compliance in the target market.
Application scenarios:
Small electric fan/rice cooker: TB series divides temperature levels to avoid misoperation caused by environmental temperature fluctuations.
Industrial equipment: The TE/TG series covers temperatures ranging from 66 ℃ to 240 ℃, suitable for diverse scenarios from low-temperature cold storage to high-temperature workshops.
4、 Power fuses and high current power fuses
Technical features:
High voltage/high current carrying capacity: suitable for AC circuits with voltage ≤ 1000V or DC circuits with voltage ≤ 1500V, rated breaking capacity ≥ 6kV.
Industrial grade reliability: meets the requirements of high-voltage and high current scenarios such as solar energy systems, industrial power sources, and electric vehicles.
Application scenarios:
New energy vehicles: compatible with battery management systems and motor controllers to ensure safe operation.
Communication power supply: protects critical components from surge impact and ensures system stability.
5、 High performance and surge resistant patch type fuse
Technical features:
Wire in Air technology: Optimize melt material and structural design to suppress starting current.
High reliability: Suitable for scenarios that require high reliability, such as frequency converters and industrial motors.
Application scenarios:
Inverter: prevents starting current surge and extends equipment life.
Industrial motors: suppress surges to ensure continuous operation stability.
6、 Precision resistor for current sensing
Technical features:
Process and specifications: Metal Oil/Metal Stream process is adopted, with dimensions ranging from 0201 to 5931 and a power of 0.25W-7W.
Low TCR and high accuracy: The temperature coefficient is as low as 50ppm, with an accuracy of 5 ‰, meeting the requirements of precision current detection.
Application scenarios:
Battery management system: Real time monitoring of current to prevent overcharging/overdischarging.
Power module: Improve energy efficiency and optimize power distribution.
Common technological advantages
Stability and safety: Fast melting speed, quickly cutting off the circuit in case of overcurrent or overheating, preventing equipment damage or fire.
Compact design: Small in size, suitable for portable devices and high-density circuit boards.
Cost effectiveness: Compared to other protective devices, it is affordable and cost-effective.
Customization capability: Provide multiple packaging, current, and voltage specifications to meet differentiated needs.
Market positioning and differentiation
Vehicle grade certification: Some products have passed AEC-Q200 certification and are suitable for automotive electronics.
Micro design: 0201 small-sized packaging, compatible with wearable devices and IoT modules.
Anti surge technology: optimized for industrial scenarios to suppress startup current surges.
Temperature fuse matrix: covering a wide temperature range of 66 ℃ -240 ℃, suitable for the needs of multiple devices.
Through six product categories and technological advantages, Huade Electronic Fuses have built circuit protection solutions that cover all scenarios, continuously providing high-performance and high reliability component support for the global electronics industry.